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New Financial Accounting Pronouncements (Tables) | 6 Months Ended
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Jun. 30, 2018
Accounting Changes And Error Corrections [Abstract] |
Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash Reported within Condensed Consolidated Statements of Cash Flows | The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Condensed Consolidated Statements of Cash Flows.
|  | June 30, 2018 |  |  | June 30, 2017 |
Cash and cash equivalents |  | $ | 35,556 |  |  | $ | 27,166 |
Restricted cash |  |  | 284 |  |  |  | 1,150 |
Restricted cash included within deferred charges and other assets |  |  | — |  |  |  | 608 |
Total cash, cash equivalents and restricted cash |  | $ | 35,840 |  |  | $ | 28,924 |

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